| Notice to Members |
| Notice No. 514 10/13/2008 |
| CME Group to Expand Listing of Natural Gas Options and Natural Gas Look Alike Options Through 2016 |
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| Beginning on Sunday evening, October 26, 2008 (for trade date Monday, October 27,2008), CME Group will expand the listing of its American Style Natural Gas Options (ON) as well as the European Style Natural Gas Look Alike Options (LN) with consecutive monthly contract months through December 2016. With the expiration of the December 2008 option, an entire new calendar year (2017) will be added. The expanded option listings will be on both the NYMEX Division trading floor for open-outcry trading, as well as for clearing on ClearPort® clearing. The expanded contract months will not be listed on CME Globex®. Currently the Exchange has Natural Gas options listed for consecutive months through the balance of the current year and also has five additional years. |
| Should you have any questions or require any further information, please contact exchangeinfo@nymex.com |